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1.5. Electronic Circuit Breaker

Your RCK cabinet may be equipped with electronic circuit breakers (ECBs). These provide over-current protection for branch circuits within the ACS cabinet such as, embedded controllers, PLC, HMIs, etc. and in some cases may provide protection for field instrumentation circuits.

ECBs are able to be tuned to the appropriate overload value for a range of loads and are able to be reset when an over-current trip occurs. Please note, if your ECB trips, it is necessary to identify the cause of the fault as soon as possible. Do not simply reset the tripped circuit or increase the trip setpoint without making sure that any faults have been corrected.

Some examples of ECBs used in RCK installations are shown below: